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(No Mddel.) v v 2 Sheets-Sheet 2. A. ROSEBRUGH.

GALVANIG BATTERY. I No. 271,992 Patented Feb. 6,1883.

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PATENT ABNER faosnennea, or TORONTO, ONTARIO, CANADA.

m GALVANiC BATTERY.

SPECIFICATION forming part of Letters Patent No. 271,92, dated February 6, 1883, Application filed May 27, 1882. (No model.)

, To all whom it may concern:

. are provided empty drip-cups for the elements to be suspended in when the battery is not in action. In batteries of this description there are two principal defects, namely: first, in the means used to effect the pressure on the hydrostat-plate, which is both complicate and inconvenient, and, second, in being obliged, in immersing and replacing theelements, to rotate them upon their horizontal axes, which causes more or less dripping of the fluid.

The object of this invention is, first, to arrange the hydrostat so that the desired pressure upon said hydrostat shall be automatic; second, to arrange the parts so that the elements may be immersed in the battery-tluid and replaced in the drip-cups without any reversal of their position, and without causing any dripping; third, to provide for better protection of the bottom of the case; and, fourth,

the introduction of certain other modifications with a view of making medical batteries more convenient and useful.

In the accompanying drawings, Figurel represents the battery open, with the elements in the drip-cups, and showingpart of the lid. Fig.2 is a section, partly diagrammatic, of the same on or near the line a b; and Fig. 3 is a longitudinal section on the line 0 cl. Fig. 4 represents the battery open and the elements immersed in the batteryfluid. Fig. 5 is a vertical section of Fig; 4, partly diagrammatic, on or near the line 0 f. Fig. 6 is a modification of Fig.2.

Like letters refer to like parts.

A A A A are horizontal sections or hydrostat-plates; B B B emptyor drip cells; C G 0 battery-fluid cells; D D D exciting elements; .E, induction-coil; F F F handles for lifting the horizontal sections; H I, primaryqvire faradic-battery connections; H 1,

K, lid of battery-case; 0, elastic cushions or overlapping cleats; M, bearing of said cush L, elastic supports for cells; G, supplemental screw-cup for making connection with elements of adjoining section.

The action of the automatic hydrostat is as follows: The size and depth of the case and so adjnstedthat when the lid is closed firm pressure is exerted by the overlapping part of the lid, cleat, or cushion 0 against the ends of the hydrostat-platcs at M and M. This pressure compresses. the elastic lining of the hydrostat-plate against the" top of the cells. When the battery-case is closed, therefore, the battery-cells are automatically sealed watertight, and the apparatus is ready for transportation. The elastic supports L give additional elasticity to the hydrostat.

The overlapping portion of the lid 0 may be a yielding cushionas,for instance, soft india-rubber or cork. It may be a cleat secured to the side of the box-lid, or the sides of the lid may be made to overlap the hydrostatplates by being made of thicker material.

The elastic support or supports beneath the cells L may consist of two bands of soft indiarubber or similar materialextendingt'he length of the inside of the case, beneath the ends of the cells; or the entire inside bottom of the box may be lined with soft indie-rubber cloth or anysiinilar material that will both give elastic support to the cells and resist the action of the battery-fluid. The depth of the box is such that one or more layers of india rnbber cloth or one or more layers of bibulous paper may be placed beneath the cells, so as to give delicate adjustment to the hydrostat.

The apparatus is operated as follows: In putting the battery in action the section or plate A is removed, so as to make room for the overlapping hydrostat-plate of section A, the elements connected with which (1 2 34 5 6) are simply elevated from the drip-cup B and immersed in the cells 0. In the same manner the elements of the next section (12 11 10 9 8 7) are immersed in the battery-cells-O, space being made for the overlapping hydrostat-plate by the removal of section A. The elements of both sections being immersed, they ions; N, cleats for keeping cells in position;

elements for faradic battery; J, battery-case;

the sizeof the cells and hydrostat-plate are are connected at the ends next to the hinged connected with No. 12% post of the next series,

and so on.

In constructing a battery with a large number of cells it may be convenient to have a larger number of cells in each section-nine, for instance, instead of six-and arranged as follows: 1 to 9, 10 to 18,19 to 27,and so on. In the latter case the supplemented postsG would be attached to 9% of the second series and 18% of the third, 9% being at the distant end of the second series and 18% at the near side of third series.

In securing the elements to the hydrostatplates,it'the first element is a positive element, the last element of that series would be a negative element, and the first of the next series would be positive and the last negative, and so on. Thus, if carbon is attached to post and zinc to post 6, carbon would be attached to 6% and zinc to 12. Consequently, when the elements are immersed in the battery-fluid, retaining the same relative position, and 6 and 6% being connected, the post would be the positive pole and post 12 would be the negative.

A supplemental post, G, is used for the purpose of shortening the distance for connecting the last element of one series with the first of the next. It has connection with the first screw-post, preferably, by means of a metallic band. It is connected with the first screwpost of each series, except that of the first series.

An essential part of this invention is the provision for the overlapping of the hydrostatplate when the first series of cells, A, is im' mersed. When. an extra battery-cell is pro-. vided for the faradic coil, as represented in the drawings, 0 the hydrostat-plate of A covers it when the elements are immersed. In this case an additional space is provided for a drip-cup, B by lengthening the inside of the case to that extent. To save this space, however, provision may be made for the drip-cup in the inside of the lid; but in cases where no extra battery-cell is provided for the faradic coil this space is utilized for the extra drip-cu p, as represented in Fig. 6, B

In this battery, as described, the series of elements are represented as being divided into separate sections, or attached to separate hydrostat-plates. This arrangementis not absolutely necessary, and for some purposes it is more convenient to have the sections all in one piece. All the connections being permanent,

the use of connecting-wires is unnecessary, and, moreover, with such an arrangement it is easier to attach a pole-changer, current-selector, galvanorneter, 860.

When the battery contains a-large number of elements I propose to use two cases, one containing the battery-cells, and the other case containing, say, one large drip-cell. I would place the battery-cells side by side, without any intervening space or drip-cell. The elements would be arranged in close rank to correspond with the position of the cells, and preferably all attached to the same section. I propose using twocases for convenience of transportation. is provided, to which, for convenience, an induction-coil may be attached. In smaller batteries the drip-cup may be arranged in the same case as the battery-cell.

I am aware of the fact that it is not new to hold the hydrostat-plate down upon the tops of the cells by, a presser-foot, rod, and screw acting independently of the cover or lid, and I do not claim such arrangement.

What I claim as new is 1. A galvanic battery composed of a case, a series of cells within the same, a set of removable hydrostat-plates carrying the elements and resting upon the tops of the cells,

A separate hydrostat plate;

and a hinged lid or cover for closing in the case, having bearing surfaces for pressing against the tops of the hydrostat-plates when closed and forcing them into a sealedjoint with the cells, as described.

2. A galvanic battery composed of alternating drip-cells and exciting-cells, a set of eral adjustment of the hydrostat-plates from the filled cells to the empty cells, or vice versa, without turning the plates, as described.

3. The combination, in a galvanic battery, of a case having a series of cells, a set of hydrostat-plates resting upon the tops of the cells, elastic supports beneath the cells, and a hinged cover adapted to be closed down upon the hydrostat plates, substantially as described.

4. The combination, in a galvanic battery, of a case having alternating series of dripcells and cells filled with exciting-fluid, a set of hydrostat-plates covering two sets of cells, and having underneath a series of elements on one side, and on top a conductor, G, and a post, G, for utilizing a short connection between the elements of one plate and those of the next, as described. I

A. M. ROSEBBUGH.

Witnesses:

M. M. Rosnnauorr, ELLEN ROSEBRUGH.

hydrostat-plates made of a width to cover two 

